Improvement in rivets



E. S. WHEELER.

RIVBT. No. 80,791. Patented Aug. 4, 1868.

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W/Zb/Eaffe f QW d y ELONZO S. VHEELEI'I.7 OF WESTPORT, CNNECTICUT.

IM PROVEME'NT IN RIVETS.

Specication forming part of Letters Patent No. 80,791, dated August 4, 186B.

To all whom it may concern:

Beit known that 1, 'ELoNzo S. WHEELER, of Westport, in the county of Fairfield and State of Connecticut, have invented a new and Improved Rivet andl I 'do hereby declare theV following, when taken in connection with thev accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, one surface; Fig. 2, the reverse surface, showing the two faces or heads of the rivets; Fig. 3, one part ;V Fig. 4, the other part of the rivet; and, in Fig. 5, a sectional view.

Thisinvention is designed with special reference to the manufacture of mail-bags, but is alike applica-ble for other purposes; and the 'invention consists in a tubular rivet formed with head upon one end and so that in the act of pressing ahead upon the other end the last head is securely attached to the rivet.

ln order to the clear understanding of my invention, I will fully describe the same as illustrated in the accompanying drawings.

I will first describe the construction or" the rivet, as illustrated in Fig.

A is a tube formed from sheet metal, and

provided at one en d with a head, a, the said head c attached to or formed upon the tube s as to form a rim around the tube, as seen' in Fig. 3. This tube I insert through aplate, n, then over this a filling of any suitable material, as past-eboard, and over this a cap, B, closed down ever the plate n., so as to firmly secure the tuberplat-e n. and cap B together, as it were, in one piece. The plate n is made slightly convexor conical upon the under side, as seen in Iiig. 3.

The head is formed, as seen in Fig. 4, by a f plate, C, closed onto the convex orconieal plate j', so as to secure the two parts together, the plate f having a perforation at JL, so as to allow the tube A'to pass freely therethrough. Into the plate C, I form an indentation, i, and the head is complete.

The two parts D and E ofthe leather (seen in Fig. 5) are placed together and punched to permit the tube A to pass therethrough. Then the head C is set on the tube and placed under a suitable press. The tube A is spread within the tube C, so as to secure the head C firmly toI the tube. and thc two parts of leather firmly together. 'Ihe peculiar ilorm of the head serves to facilitate the operation of spreading the tube; but this form may be made by the addition of lmaterial onto the plate C, or by the indentation, as shown; or the indentation may bemade by `the'press which secures the head tothe rivet.

' The advantages of this rivet for securing leather or similar flexible material'are., that bythe rivet in common use the head is Hat upon the underside, or nearly so, andthe edge of thehead does not bear hard upon the lea-ther, whereasin the 4head B of this rivet the turned-over edge of the head B is drawn down hard upon the material, so as to form a bearing at Jthe extreme edge. ot' the head also, in the common rivet, a washer is placed upon the opposite side to the head, and the process of heading the rivet upon the washer' causes the edges of the washer to turn up, so that the washer practically bears only at the body of the rivet, whereas in my 'invention the edge of the head C is supported so that the principal bearing of 'that head is like the -head B at its extreme edge.

vIn the use of the common rivet, as before described, having its bearing practicallyr only at the body ofthe rivet, the materials usedin this manner are easily torn from the rivet, whereas in myimprovement there is no liability of such tearing. away.V

In securing the head C, the instrument may, if preferred, pass through a perforation in the center ofthe head C, and thus in' some cases facilitate the process of riveting.

This rivet is peculiarly adapted to the manufacture of mail-bags of leather or other iiexible materials, and alike applicable to securing similar materials for other purposes.

Having thus fully described my invention, what I claim as'newand'useful, and desire to secure' by Letters Patent, is

A rivet consisting of a tube, A, with its head B formed or attached thereon,substan tially as described, with its corresponding head O constructed so as to be attached thereto, as herein set forth, as anew article of manufacture.

ELONZO S. WHEELER.

Vilitnesses GEORGE 13. SMITH, ROBINSON H. WHEELER. 

